Fuse tongs



H. B. BUSH FUSE TONGS Original Filed Oct. 24, 1919 Patented Jan. 20, 1925.

UNITED STATES PATENT OFFICE.

HAZEL B. BUSH, O'F BEDFOIt-D, OHIO, ASSIGNOR, TO THE BUSH ELECTRIC COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

FUSE TONGS.

Application filed October 24, 1919, Serial No. 332,916.

To all whom it may concern Be it known that I, HAZEL B. BUSH, a citizen of the United States, residing at Bedford, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Fuse Tongs, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention seeks primarily to produce an instrument, known as safety fuse tongs, by means of which a person may by the use of one hand only grasp a fuse of the cartridge type and conveniently remove it from or emplace it within its holding clips without danger of shock or short circuit by con tact with the instrun'ient with adjacent charged electrical elements. To this end the instrument is constructed practically entirely of non-conductive material, such as liber.

Further objects sought to be attained are simplicity of construction; economy of manufacture; ease of assembly; and minimizing an interchangeability of parts, in an instrument of the character above stated and whereby fuses of a wide variety of sizes may be grasped with a comparatively small hand movement.

Such an instrument is illustrated in the accompanying drawin wherein Fig. 1 is a side elevation showing the instrument grasp iug afuse; and Fig. 2 is a view at right angles to Fig. l with one of the side plates removed.

The instrument comprises identical side plates 1, 1; jaws 2, 2; and handles 3, 3 all of which are of nn-co-nductive material.

The aws are arranged in opposed relation to each other between the front ends of the side plates and are pivoted upon pins or rivets 5, which may be of the tubular variety, as shown. The handles are similarly arranged and are pivoted upon pins or rivets 6 between the rear ends of the side plates with their forward ends between the adjacent ends of the jaws so that by bringing the handles together the gripping ends of the jaws are caused to approach each other. This action is gently resisted by aspring 8 that has its ends confined within opposed recesses of the jaws forwardly of their pivot points, and the spring further tends to maintain the parts in symmetrical arrangement by equalizing the prcssuro of Renewed June 23, 1924.

the handles upon the jaws. The rivets and 6 serve to hold the side plates together.

A stop pin or rivet 10 is supported by and between the rear ends of the side plates, on the center line of the instrument, where itserves to limit the inward movement of each of the handles. Being so limited in their movements, the handles are prevented from becoming disengaged from the jaws, and each time the handles are brought into on ga-gement with. the stop pin or rivet it lines up" the handles and jaws.

The heads of the rivets 5, 6 and 10 are shielded from accidental contact with charged electrical elements (which might lead to short circuits between oppose-d elements through the rivets if they were not so shielded) by annular beads 11 formed on the face plates 1.

Attention is called to the fact that the zone of engagement between the inner ends of the handles and the adjacent end of the jaws is substantially midway between the pivot points of the handles and levers. (lonsequently a wide angle of movement is accorded the jaws through a. swing of the handles comfortably within the grasp of the average individual.

Vith the fuse 15 grasped between the jaws as illustrated in Fig. I, it may be easily inserted within its holding clips 16 or with drawn therefrom.

The capacity of the present instrument is suggested by the dotted line circles in Fig. 2 which indicate the minimum and maximum sizes of fuses which the instrument will accommodate; and the requisite movement of the handles for grasping such a wide variety of sizes is shown by the dotted and full line positions of the handles in said tiguies.

Having thus described my invention, what I claim is 1. An instrument of the character set forth comprising opposed identical side plates, identical jaws arranged in opposed relation to each other and pivoted to and between one end of the side plates, the op posed edges of said jaws between said pivotal points being of such shape as to afford contact with each other at all positions of said jaws, and identical handles arranged in reverse relation to each other with their inner ends disposed between the adjacent ends of the jaws and pivoted to and between the opposite ends of the side plates IOU 2. An instrument of the character set forth comp-rising opposed identical side plates, identical jaws arranged in opposed i'clation to each other and pivoted to and between one end of the side plates the opposed edges of said jaws between said pivotal points being of such shape as to afford contact with each other at all positions of sald jaws, identical handles disposed in reverse 1; relation to each other with their inner ends VHAZELJ BUSH. 

